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【单选题】
世界上第一编程控制器（PLC）产生于 年。A.
1969
B.
1979
C.
1989
D.
1999
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举一反三
【单选题】______ the students found the soldier’s idea interesting, the system was too difficult to be of practical use.
A.
While
B.
Unless
C.
As soon as
D.
Even if
【简答题】我们把 a·b 叫做数组 a 和数组 b 的 ______
【简答题】prac cal 实际的；实用性的A. ti
【简答题】G=Guest C=Clerk G: Could I have the ___________ (1), please? C: Yes, sir. A bill for each or a check for all? G: A bill for __________ (2). C: Here it is, sir. G: How much? C: That amounts to ________...
【单选题】In the text, the author is primarily concerned with
A.
predicting the consequences of a practice.
B.
criticizing a point of view.
C.
calling attention to recent discoveries.
D.
summarizing conflicting opinions.
【单选题】The cohesiveness (内聚力)of a family seems to rely on members sharing certain routine practices and events. For a growing share of the American labor force, however, working shifts beyond the normal dayl...
A.
traditional beliefs about marriage
B.
lack of control over time
C.
a very clear division of roles
D.
the demands of work
【简答题】简述Ramsay褶皱分类的类型?
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